The MemSQL Ops do not have set the login credential by default and it's open can access. The MemSQL comes with an enhanced superuser account that locks down read and write access Superusers can be set with the below command,

Would reduce unnecessary disk space from log files in your system if you use LogRotate. On this post-configure MongoDB log files, site MongoDB 3.0 you can change the behaviour logRotate parameter for MongoDB.

In Ubuntu libssl-dev package implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. It contains development libraries, header files, and man pages for Libssl and Libcrypto.